/*
   client/mapwindow.cc
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#include "audio/audio.h"
#include "core/application.h"
#include "core/entity.h"
#include "core/entityglobe.h"
#include "client/mapwindow.h"
#include "client/targets.h"
#include "ui/ui.h"
#include "ui/paint.h"
#include "render/gl.h"
#include "render/textures.h"
#include "render/text.h"

namespace client
{

MapWindow::MapWindow(ui::Widget *parent) : ui::Window(parent)
{
	set_label("map");
	set_border(true);
	set_background(true);
	set_font(ui::root()->font_small());

	// ---- right pane
	mapwindow_pane_right = new ui::Widget(this);
	mapwindow_pane_right->set_background(true);
	mapwindow_pane_right->set_border(true);
	
	// modelview, add it first so it gets rendered before anything else
	mapwindow_modelview = new ui::ModelView(mapwindow_pane_right);
	mapwindow_modelview->set_label("modelview");
	mapwindow_modelview->set_background(false);
	mapwindow_modelview->set_border(false);
	
	// target title 
	mapwindow_targetlabel = new ui::Label(mapwindow_pane_right);
	mapwindow_targetlabel->set_label("targetlabel");
	mapwindow_targetlabel->set_background(false);
	mapwindow_targetlabel->set_border(false);
	mapwindow_targetlabel->set_alignment(ui::AlignCenter);
	
	// info label (modelview child)
	mapwindow_infolabel = new ui::Label(mapwindow_pane_right);
	mapwindow_infolabel ->set_label("infolabel");
	mapwindow_infolabel->set_background(false);
	mapwindow_infolabel->set_border(false);
	mapwindow_infolabel->set_alignment(ui::AlignCenter);
	
	// target text
	mapwindow_scrollpane = new ui::ScrollPane(mapwindow_pane_right, mapwindow_infotext);
	mapwindow_scrollpane->set_background(false);
	mapwindow_scrollpane->set_border(false);
	mapwindow_scrollpane->set_alignment(ui::AlignTop);

	// ---- left pane
	mapwindow_pane_left = new ui::Widget(this);
	mapwindow_pane_left->set_background(true);
	mapwindow_pane_left->set_border(true);
	
	// map widget
	mapwindow_mapwidget = new MapWidget(mapwindow_pane_left);
	mapwindow_mapwidget->set_background(false);
	mapwindow_mapwidget->set_border(false);
	
	// galaxy map widget
	mapwindow_galaxymapwidget = new GalaxyMapWidget(mapwindow_pane_left);
	mapwindow_galaxymapwidget->set_background(false);
	mapwindow_galaxymapwidget->set_border(false);
	mapwindow_galaxymapwidget->hide();
	
	// map label
	mapwindow_maplabel = new ui::Label(mapwindow_pane_left);
	mapwindow_maplabel->set_label("maplabel");
	mapwindow_maplabel->set_background(false);
	mapwindow_maplabel->set_border(false);
	mapwindow_maplabel->set_alignment(ui::AlignCenter);
	
	// map buttons
	mapwindow_zonebutton = new ui::IconButton(mapwindow_pane_left, "bitmaps/icons/button_map");
	mapwindow_galaxybutton = new ui::IconButton(mapwindow_pane_left, "bitmaps/icons/button_galaxy");
	
	// ---- window title
	mapwindow_titlelabel = new ui::Label(this);
	mapwindow_titlelabel->set_label("title");
	mapwindow_titlelabel->set_background(false);
	mapwindow_titlelabel->set_border(false);
	mapwindow_titlelabel->set_font(ui::root()->font_large());
	mapwindow_titlelabel->set_alignment(ui::AlignCenter);
	mapwindow_titlelabel->set_text("STAR CHART");
	
	// close button
	mapwindow_closebutton = new ui::IconButton(mapwindow_titlelabel, "bitmaps/icons/window_close");
	


	hide();
}

MapWindow::~MapWindow()
{
}

void MapWindow::hide()
{
	ui::Window::hide();
}

void MapWindow::show()
{
	ui::Window::show();
		
	// show map widget
	mapwindow_mode = ShowZone;
	mapwindow_galaxymapwidget->hide();
	mapwindow_mapwidget->show();
	mapwindow_mapwidget->set_zone(core::localplayer()->zone());
	mapwindow_maplabel->set_text(mapwindow_mapwidget->zone()->name());
	
	// use current HUD target as default selection
	if (core::localplayer()->view()) {
		mapwindow_mapwidget->set_target(core::localplayer()->view());
	} else {
		mapwindow_mapwidget->set_target(targets::current());
	}
	
	// show target or zone info
	if (mapwindow_mapwidget->target()) {
		show_entity_info(mapwindow_mapwidget->target());
	} else {
		show_zone_info(mapwindow_mapwidget->zone());
	}	
}

void MapWindow::resize()
{
	const float padding =  ui::root()->font_large()->height();
	const float icon_size = 24.0f; // small icons
	
	// resize title label
	mapwindow_titlelabel->set_size(width() - padding * 2.0f, mapwindow_titlelabel->font()->height());	
	mapwindow_titlelabel->set_location(padding, padding);

	// resize close button
	mapwindow_closebutton->set_size(mapwindow_titlelabel->font()->height(), mapwindow_titlelabel->font()->height());
	mapwindow_closebutton->set_location(mapwindow_titlelabel->width() - mapwindow_closebutton->width(), 0);
	
	// resize left pane
	mapwindow_pane_left->set_size((width() - padding * 3.0f) * 0.5f, height() - mapwindow_titlelabel->bottom() - 2.0f * padding);
	mapwindow_pane_left->set_location(padding, mapwindow_titlelabel->bottom() + padding);
	
	{
		const ui::Widget *pane = mapwindow_pane_left;
		const float margin_horizontal = pane->font()->width();
		const float margin_vertical = pane->font()->height() * 0.5f;
		
		// resize map label
		mapwindow_maplabel->set_size(pane->width() - 2.0f * margin_horizontal, mapwindow_maplabel->font()->height());
		mapwindow_maplabel->set_location(margin_horizontal, margin_vertical);
	
		// resize zone map widget
		mapwindow_mapwidget->set_size(pane->width() - 2.0f * margin_horizontal, pane->height() - mapwindow_maplabel->bottom() - margin_vertical * 4.0f - icon_size);
		mapwindow_mapwidget->set_location(margin_horizontal, mapwindow_maplabel->bottom() + margin_vertical);
	
		// set galaxy map size equal to zone map size
		mapwindow_galaxymapwidget->set_geometry(mapwindow_mapwidget->location(), mapwindow_mapwidget->size());
	
		// resize map buttons
		float l = (mapwindow_mapwidget->width() - math::min(mapwindow_mapwidget->width(), mapwindow_mapwidget->height())) * 0.5f;
	
		mapwindow_zonebutton->set_size(icon_size, icon_size);
		mapwindow_zonebutton->set_location(mapwindow_maplabel->left() + l, mapwindow_mapwidget->bottom() + margin_vertical);
	
		mapwindow_galaxybutton->set_size(icon_size, icon_size);
		mapwindow_galaxybutton->set_location(mapwindow_maplabel->right() - l - icon_size, mapwindow_mapwidget->bottom() + margin_vertical);
	}
	
	// resize right pane
	mapwindow_pane_right->set_size(mapwindow_pane_left->size());
	mapwindow_pane_right->set_location(mapwindow_pane_left->right() + padding, mapwindow_titlelabel->bottom() + padding);

	{
		const ui::Widget *pane = mapwindow_pane_right;
		const float margin_horizontal = pane->font()->width();
		const float margin_vertical = pane->font()->height() * 0.5f;

		// resize target label
		mapwindow_targetlabel->set_size(pane->width() - margin_horizontal * 2.0f, mapwindow_targetlabel->font()->height());
		mapwindow_targetlabel->set_location(margin_horizontal, margin_vertical);
		
		// resize info label
		mapwindow_infolabel->set_size(pane->width() - margin_horizontal * 2.0f, mapwindow_infolabel->font()->height());
		mapwindow_infolabel->set_location(margin_horizontal, pane->height() * 0.5f);
	
		// resize target modelview
		mapwindow_modelview->set_size(mapwindow_targetlabel->width(), mapwindow_infolabel->top() - mapwindow_targetlabel->bottom() - margin_vertical * 2.0f);
		mapwindow_modelview->set_location(margin_horizontal, mapwindow_targetlabel->bottom() + margin_vertical);
	
		// resize target info text
		mapwindow_scrollpane->set_size(mapwindow_infolabel->width(), pane->height() - mapwindow_infolabel->bottom() - margin_vertical * 2.0f);
		mapwindow_scrollpane->set_location(mapwindow_modelview->left(), mapwindow_infolabel->bottom() + margin_vertical);
	}
}

void MapWindow::draw()
{
	ui::Window::draw();
	
	/*
	// make sure the target still exists
	mapwindow_target = core::localplayer()->zone()->find_entity(mapwindow_target);
	
	mapwindow_mapwidget->set_zone(core::localplayer()->zone());
	mapwindow_mapwidget->set_target(mapwindow_target);
	mapwindow_maplabel->set_text(core::localplayer()->zone()->name());
	
	*/
	if (mapwindow_inforecord) {
		if (mapwindow_infotimestamp != mapwindow_inforecord->timestamp()) {
			// update info
			set_info(mapwindow_inforecord);
		}
	}
	
}

void MapWindow::set_info(const core::Info *info)
{
	mapwindow_inforecord = 0;
	mapwindow_infotimestamp = 0;
	mapwindow_infotext.clear();
	mapwindow_infolabel->clear();
	
	if (info) {
		mapwindow_inforecord = core::game()->request_info(info->id());	
	}
	
	if (mapwindow_inforecord) {
		mapwindow_infolabel->set_text(mapwindow_inforecord->name());
		for (core::Info::Text::const_iterator it = mapwindow_inforecord->text().begin(); it != mapwindow_inforecord->text().end(); it++) {
			mapwindow_infotext.push_back((*it));
		}		
		mapwindow_infotimestamp = mapwindow_inforecord->timestamp();		
	} else {
		mapwindow_infotext.push_back("Information is not available");
		mapwindow_infotimestamp = 0;
	}
}

void MapWindow::show_entity_info(const core::Entity *entity)
{
			
	if (core::localplayer()->zone() == entity->zone()) {
		targets::set_target(entity);
	}
	
	if (entity) {
		if (entity->model()) {
			mapwindow_modelview->set_mode(ui::ModelView::Model);
			mapwindow_modelview->set_modelname(entity->model()->name());
			mapwindow_modelview->set_colors(entity->color(), entity->color_second());
			mapwindow_modelview->set_zoom(2.5f);
			mapwindow_modelview->set_radius(2.0f);
			
		} else if (entity->type() == core::Entity::Globe) {
			mapwindow_modelview->set_mode(ui::ModelView::Globe);
			const core::EntityGlobe *globe = static_cast<const core::EntityGlobe *>(entity);
			mapwindow_modelview->set_colors(globe->color(), globe->color_second());
			mapwindow_modelview->set_globetexturename(
				globe->texturename(),
				globe->coronaname(),
				globe->ringsname(),
				globe->has_flag(core::Entity::Bright)
				
			);
			mapwindow_modelview->set_zoom(2.5f);
			if (globe->has_flag(core::Entity::Bright)) {
				mapwindow_modelview->set_radius(0.5f);
			} else {
				mapwindow_modelview->set_radius(1.0f);
			}
		} else {
			mapwindow_modelview->clear();
		}
		
		mapwindow_targetlabel->set_text(entity->name());
		
		set_info(entity->info());
		mapwindow_modelview->show();
		
	} else {
		set_info(0);
		mapwindow_infotext.clear();		
		mapwindow_modelview->clear();
		
		mapwindow_targetlabel->clear();
		mapwindow_infolabel->clear();
	}
}

void MapWindow::show_zone_info(const core::Zone *zone)
{
	if (zone) {
		set_info(zone->info());
		
		switch (mapwindow_mode) {
			case ShowZone:
				mapwindow_targetlabel->clear();
				break;
			
			case ShowWorld:
				mapwindow_targetlabel->set_text(zone->name());
				break;
		}
	} else {
		set_info(0);
		mapwindow_infotext.clear();
		mapwindow_targetlabel->clear();
	}
	mapwindow_modelview->clear();
}

bool MapWindow::on_keypress(const int key, const unsigned int modifier)
{
	if (key == SDLK_ESCAPE) {
		if (visible()) {
			hide();
			return true;
		}
	}

	return false;
}

bool MapWindow::on_emit(ui::Widget *sender, const ui::Widget::Event event, void *data)
{
	if (sender == mapwindow_closebutton) {
		if (event == ui::Widget::EventButtonClicked) {
			hide();
		}
		return true;
		
	} else if (sender == mapwindow_mapwidget) {
		if (event == ui::Widget::EventClicked) {
			if (mapwindow_mapwidget->target()) {
				show_entity_info(mapwindow_mapwidget->target());
			} else {
				show_zone_info(mapwindow_mapwidget->zone());
			}	
			return true;
		}
	
	} else if (sender == mapwindow_galaxymapwidget) {
		if (event == ui::Widget::EventClicked) {
			show_zone_info(mapwindow_galaxymapwidget->zone());
			return true;
		} else if (event == ui::Widget::EventDoubleClicked) {
			if (mapwindow_galaxymapwidget->zone()) {
				mapwindow_mode = ShowZone;
				mapwindow_galaxymapwidget->hide();
				mapwindow_mapwidget->set_zone(mapwindow_galaxymapwidget->zone());
				mapwindow_mapwidget->show();				
				mapwindow_maplabel->set_text(mapwindow_mapwidget->zone()->name());
				show_zone_info(mapwindow_mapwidget->zone());
			}
			return true;
		}
		
	} else if (sender == mapwindow_zonebutton) {
		if (event == ui::Widget::EventButtonClicked) {
			if (mapwindow_mode == ShowZone) {
				mapwindow_mapwidget->set_target(0);
				show_zone_info(mapwindow_mapwidget->zone());
			} else {
				mapwindow_mode = ShowZone;
				if (mapwindow_galaxymapwidget->zone()) {
					mapwindow_mapwidget->set_zone(mapwindow_galaxymapwidget->zone());
				} else {
					mapwindow_mapwidget->set_zone(core::localplayer()->zone());
				}
				mapwindow_mapwidget->show();
				mapwindow_galaxymapwidget->hide();
				mapwindow_maplabel->set_text(mapwindow_mapwidget->zone()->name());
			}
			return true;
		}
		
	} else if (sender == mapwindow_galaxybutton) {
		if (event == ui::Widget::EventButtonClicked) {
			if (mapwindow_mode == ShowWorld) {
				mapwindow_galaxymapwidget->set_zone(0);
				show_zone_info(0);
			} else {
				mapwindow_mode = ShowWorld;
				mapwindow_mapwidget->hide();
				mapwindow_galaxymapwidget->show();
				mapwindow_galaxymapwidget->set_zone(mapwindow_mapwidget->zone());
				show_zone_info(mapwindow_galaxymapwidget->zone());
				mapwindow_maplabel->set_text("Starsystems");
			}
			return true;
		}
	}
	
	return Window::on_emit(sender, event, data);
}

}